CN223789572U - A front chuck - Google Patents
A front chuckInfo
- Publication number
- CN223789572U CN223789572U CN202520204430.9U CN202520204430U CN223789572U CN 223789572 U CN223789572 U CN 223789572U CN 202520204430 U CN202520204430 U CN 202520204430U CN 223789572 U CN223789572 U CN 223789572U
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- fixedly mounted
- driving gear
- mounting frame
- rotating
- gear
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Abstract
本实用新型公开了一种前卡盘，涉及到卡盘领域，包括固定底座，所述固定底座内转动安装有转动套，转动套的侧面固定安装有转动盘，转动盘侧面固定安装有内套，内套侧面固定安装有大法兰，大法兰上开设有四个活动槽，四个活动槽内均滑动安装有夹爪组件，夹爪组件上固定安装有环形限位环，所述转动盘的侧面布置有夹持驱动结构，所述转动套侧面布置有方向调节结构。本实用新型满足高端制造领域对零部件精度的严苛要求，高精密卡盘的夹持力度均匀稳定，可避免因夹持不均导致的工件变形，尤其适用于薄壁类等易变形零件的加工，其结构设计紧凑，刚性好，能承受较大切削力，保证加工过程的稳定性，延长卡盘使用寿命。
This utility model discloses a front chuck, relating to the field of chucks. It includes a fixed base, within which a rotating sleeve is rotatably mounted. A rotating disk is fixedly mounted on the side of the rotating sleeve, and an inner sleeve is fixedly mounted on the side of the rotating disk. A large flange is fixedly mounted on the side of the inner sleeve, and four movable slots are provided on the large flange. Each of the four movable slots has a slidably mounted gripper assembly, and an annular limiting ring is fixedly mounted on the gripper assembly. A clamping drive structure is arranged on the side of the rotating disk, and a direction adjustment structure is arranged on the side of the rotating sleeve. This utility model meets the stringent precision requirements of high-end manufacturing fields for parts. The high-precision chuck provides uniform and stable clamping force, avoiding workpiece deformation caused by uneven clamping. It is particularly suitable for machining easily deformable parts such as thin-walled parts. Its compact structure and high rigidity allow it to withstand large cutting forces, ensuring the stability of the machining process and extending the chuck's service life.
Description
Technical Field
The utility model relates to the technical field of chucks, in particular to a front chuck.
Background
The chuck is a mechanical device used for clamping a workpiece on a machine tool, and utilizes radial movement of movable claws arranged on a chuck body to clamp and position the workpiece, and is generally composed of a chuck body, the movable claws and a claw driving mechanism 3, wherein the center of the chuck is provided with a through hole so as to pass through the workpiece or a bar stock, the back of the chuck is provided with a cylindrical or short conical structure, and the chuck is directly connected with the end part of a main shaft of the machine tool or connected with the end part of the main shaft of the machine tool through a flange plate, and the chuck is generally installed on the machine tool, a cylindrical grinder and an internal grinder for use and can also be matched with various indexing devices for use on a milling machine and a drilling machine.
In the prior art, the part of rear chuck can meet the processing requirement of a single type, and cannot meet the high-precision production requirement, so that a precision front chuck is required to meet the requirements of people.
Disclosure of utility model
The utility model aims to provide a front chuck, which solves the problems that part of the rear chuck proposed in the background art can meet the single type of processing requirement and cannot meet the high-precision production requirement.
The front chuck comprises a fixed base, a rotating sleeve is rotatably arranged on the fixed base, a rotating disc is fixedly arranged on the side face of the rotating sleeve, an inner sleeve is fixedly arranged on the side face of the rotating disc, a large flange is fixedly arranged on the side face of the inner sleeve, four movable grooves are formed in the large flange, clamping jaw assemblies are slidably arranged in the four movable grooves, an annular limiting ring is fixedly arranged on the clamping jaw assemblies, a clamping driving structure is arranged on the side face of the rotating disc, and a direction adjusting structure is arranged on the side face of the rotating sleeve.
Preferably, the clamping driving structure comprises a driving gear, the driving gear is rotatably arranged on the outer side of the inner sleeve, a fixed mounting frame is fixedly arranged on the side face of the large flange, a driven gear is rotatably arranged on the fixed mounting frame, the driven gear is meshed with a gear on the inner side of the driving gear, a driving gear is fixedly arranged on the side face of the driven gear, a rack is fixedly arranged on the clamping jaw assembly, and the driving gear is meshed with the rack.
Preferably, a fixed mounting rod is fixedly arranged on the side face of the large flange, a rotary mounting frame is rotatably arranged on the fixed mounting rod, and an air cylinder is fixedly arranged on the rotary mounting frame.
Preferably, the output end of the air cylinder is fixedly provided with a driving block, an L-shaped transmission rod is rotatably arranged on the driving block, and the L-shaped transmission rod is fixedly arranged on an outer gear of the driving gear.
Preferably, the clamping jaw assembly is provided with a linear sliding groove, a linear sliding block is arranged in the linear sliding groove in a sliding mode, and the linear sliding block is fixedly arranged on the inner wall of the movable groove.
Preferably, the side surface of the fixed base is provided with an annular limiting groove, an annular limiting ring is rotatably arranged in the annular limiting groove, and the annular limiting ring is fixedly arranged on the side surface of the rotating disc.
Preferably, the direction adjusting structure comprises a motor mounting frame, the motor mounting frame is fixedly mounted on the fixed base, a steering motor is fixedly mounted on the motor mounting frame, a steering driving gear is fixedly mounted at the output end of the steering motor, a steering driven gear is fixedly mounted on the side face of the rotating sleeve, and the steering driven gear is meshed with the steering driving gear.
The beneficial effects of the utility model are as follows:
1. The utility model utilizes the mode of controlling the rotation of the driving gear by the extension of the output end of the air cylinder to drive the annular limiting ring to move on the large flange, thereby realizing the multidirectional clamping effect, having higher positioning precision, ensuring that the workpiece always keeps the accurate position in the processing process, greatly improving the processing precision, the high-precision chuck meets the strict requirements of the high-end manufacturing field on the precision of parts, has uniform and stable clamping force, can avoid workpiece deformation caused by uneven clamping, is particularly suitable for machining of easily-deformed parts such as thin walls and the like, has compact structural design and good rigidity, can bear larger cutting force, ensures the stability of the machining process, and prolongs the service life of the chuck.
2. The utility model adopts the cylinder driving clamping mode and has unique advantages, the response speed of the cylinder is high, the quick clamping and loosening of the workpiece can be realized in a short time, the production efficiency is effectively improved, the quick beat requirement of an automatic production line is met, the clamping force can be conveniently controlled by adjusting the air pressure, the clamping requirements of workpieces with different materials and shapes are met, the flexibility is high, the cylinder driving is clean and environment-friendly, the problem of oil pollution is not worried about compared with the hydraulic driving, and the maintenance is simple and the cost is low.
Drawings
FIG. 1 is a schematic perspective view of a front chuck according to the present utility model;
FIG. 2 is a schematic side view of a front chuck according to the present utility model;
FIG. 3 is a schematic view of a chuck drive mechanism of a front chuck according to the present utility model;
FIG. 4 is a schematic cross-sectional view of a front chuck according to the present utility model;
fig. 5 is a schematic cross-sectional view of a front chuck according to the present utility model.
In the figure, 100 parts of a fixed base, 101 parts of a rotating sleeve, 200 parts of a rotating disc, 201 parts of an inner sleeve, 202 parts of a large flange, 203 parts of a movable groove, 204 parts of a clamping jaw assembly, 205 parts of an annular limiting ring, 206 parts of a linear chute, 207 parts of a linear sliding block, 208 parts of an annular limiting groove, 300 parts of a driving gear, 301 parts of a fixed mounting frame, 302 parts of a driven gear, 303 parts of a driving gear, 304 parts of a rack, 305 parts of a fixed mounting rod, 306 parts of a rotating mounting frame, 307 parts of a cylinder, 308 parts of a driving block, 309 parts of an L-shaped transmission rod, 400 parts of a motor mounting frame, 401 parts of a steering motor, 402 parts of a steering driving gear, 403 parts of a steering driven gear.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
Referring to fig. 1-4, a front chuck comprises a fixed base 100, a rotating sleeve 101 is rotatably installed on the fixed base 100, a rotating disc 200 is fixedly installed on the side surface of the rotating sleeve 101, an inner sleeve 201 is fixedly installed on the side surface of the rotating disc 200, a large flange 202 is fixedly installed on the side surface of the inner sleeve 201, four movable grooves 203 are formed in the large flange 202, clamping jaw assemblies 204 are slidably installed in the four movable grooves 203, an annular limiting ring is fixedly installed on the clamping jaw assemblies 204, a clamping driving structure is arranged on the side surface of the rotating disc 200, a direction adjusting structure is arranged on the side surface of the rotating sleeve 101, the annular limiting ring is driven to move on the large flange in a mode of controlling the rotation of a driving gear by means of extension of an output end of a cylinder, so that a multidirectional clamping effect is achieved.
The clamping driving structure comprises a driving gear 300, the driving gear 300 is rotatably arranged on the outer side of the inner sleeve 201, a fixed mounting frame 301 is fixedly arranged on the side face of the large flange 202, a driven gear 302 is rotatably arranged on the fixed mounting frame 301, the driven gear 302 is meshed with the gear on the inner side of the driving gear 300, a driving gear 303 is fixedly arranged on the side face of the driven gear 302, a rack 304 is fixedly arranged on the clamping jaw assembly 204, and the driving gear 303 is meshed with the rack 304. The inner side of the rotating driving gear 303 drives the driven gear 302 to rotate on the fixed mounting frame 301, the rotating driven gear 302 drives the driving gear 303 to rotate, the rotating driving gear 303 drives the rack 304 to move, and the movable rack 304 drives the clamping jaw assembly 204 to slide in the movable groove 203.
The side of the large flange 202 is fixedly provided with a fixed mounting rod 305, the fixed mounting rod 305 is rotatably provided with a rotary mounting frame 306, the rotary mounting frame 306 is fixedly provided with a cylinder 307, the output end of the cylinder 307 is fixedly provided with a driving block 308, the driving block 308 is rotatably provided with an L-shaped transmission rod 309, and the L-shaped transmission rod 309 is fixedly arranged on an outer gear of the driving gear 300. When the device clamps, the air cylinder 307 is required to be started, the output end of the air cylinder 307 drives the driving block 308 to rotate on the L-shaped transmission rod 309, and the air cylinder 307 is matched with the fixed installation rods 305 at two ends, the rotating installation frame 306, the driving block 308 and the L-shaped transmission rod 309 to stretch and retract, so that the driving gear 300 is driven to rotate on the large flange 202.
The clamping jaw assembly 204 is provided with a linear sliding groove 206, a linear sliding block 207 is slidably arranged in the linear sliding groove 206, and the linear sliding block 207 is fixedly arranged on the inner wall of the movable groove 203. The rotating disk 200 is limited by the linear chute 206 and linear slider 207 and can only rotate within a fixed range.
An annular limiting groove 208 is formed in the side face of the fixed base 100, an annular limiting ring 205 is rotatably mounted in the annular limiting groove 208, and the annular limiting ring 205 is fixedly mounted on the side face of the rotating disc 200. The rotatable disk 200 is limited by the annular limiting groove 208 and the annular limiting ring 205 and can only move in a fixed range.
The direction adjusting structure comprises a motor mounting frame 400, the motor mounting frame 400 is fixedly mounted on the fixed base 100, a steering motor 401 is fixedly mounted on the motor mounting frame 400, a steering driving gear 402 is fixedly mounted at the output end of the steering motor 401, a steering driven gear 403 is fixedly mounted on the side face of the rotating sleeve 101, and the steering driven gear 403 is meshed with the steering driving gear 402. The steering motor 401 is started, the output end of the steering motor 401 drives the steering driving gear 402 to rotate, the rotating steering driving gear 402 drives the steering driven gear 403 to rotate, and the rotating steering driven gear 403 drives the rotating sleeve 101 to rotate in the fixed base 100.
Working principle:
When the device clamps, the air cylinder 307 is required to be started, the output end of the air cylinder 307 drives the driving block 308 to rotate on the L-shaped transmission rod 309, the air cylinder 307 is matched with the fixed installation rod 305 and the rotating installation frame 306 at two ends, the driving block 308 and the L-shaped transmission rod 309 to stretch and retract, the driving gear 300 is driven to rotate on the large flange 202, the inner side of the rotating driving gear 303 drives the driven gear 302 to rotate on the fixed installation frame 301, the rotating driven gear 302 drives the driving gear 303 to rotate, the rotating driving gear 303 drives the rack 304 to move, the movable rack 304 drives the clamping jaw assembly 204 to slide in the movable groove 203, the movable clamping jaw assembly 204 drives the annular limiting ring to move, the four annular limiting rings are mutually close to clamp workpieces, the clamping jaw assembly 204 can only move in a fixed range, the angle can be adjusted after the device clamps the workpieces, the output end of the steering motor 401 drives the steering driving gear 402 to rotate, the rotating steering driving gear 403 drives the steering driven gear 403 to rotate, the rotating driven gear 403 drives the rotating sleeve 101 to rotate in the fixed base 100, the rotating sleeve 200 can only rotate in a linear sliding groove 206, and the rotating sleeve 200 can only rotate in a linear sliding groove 206 is limited by the linear sliding groove 206.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (7)
1. A front chuck comprises a fixed base (100) and is characterized in that a rotating sleeve (101) is rotatably installed on the fixed base (100), a rotating disc (200) is fixedly installed on the side face of the rotating sleeve (101), an inner sleeve (201) is fixedly installed on the side face of the rotating disc (200), a large flange (202) is fixedly installed on the side face of the inner sleeve (201), four movable grooves (203) are formed in the large flange (202), clamping jaw assemblies (204) are slidably installed in the four movable grooves (203), an annular limiting ring (205) is fixedly installed on the clamping jaw assemblies (204), a clamping driving structure is arranged on the side face of the rotating disc (200), and a direction adjusting structure is arranged on the side face of the rotating sleeve (101).
2. The front chuck according to claim 1, wherein the clamping driving structure comprises a driving gear (300), the driving gear (300) is rotatably mounted on the outer side of the inner sleeve (201), a fixed mounting frame (301) is fixedly mounted on the side surface of the large flange (202), a driven gear (302) is rotatably mounted on the fixed mounting frame (301), the driven gear (302) is meshed with the inner side gear of the driving gear (300), a driving gear (303) is fixedly mounted on the side surface of the driven gear (302), a rack (304) is fixedly mounted on the clamping jaw assembly (204), and the driving gear (303) is meshed with the rack (304).
3. The front chuck according to claim 1, wherein the large flange (202) is fixedly provided with a fixed mounting rod (305) on the side surface, a rotary mounting frame (306) is rotatably mounted on the fixed mounting rod (305), and a cylinder (307) is fixedly mounted on the rotary mounting frame (306).
4. A front chuck according to claim 3, characterized in that the output end of the cylinder (307) is fixedly provided with a driving block (308), the driving block (308) is rotatably provided with an L-shaped transmission rod (309), and the L-shaped transmission rod (309) is fixedly arranged on an outer gear of the driving gear (300).
5. The front chuck according to claim 1, wherein the clamping jaw assembly (204) is provided with a linear sliding groove (206), a linear sliding block (207) is slidably arranged in the linear sliding groove (206), and the linear sliding block (207) is fixedly arranged on the inner wall of the movable groove (203).
6. The front chuck according to claim 1, wherein the side surface of the fixed base (100) is provided with an annular limiting groove (208), an annular limiting ring (205) is rotatably arranged in the annular limiting groove (208), and the annular limiting ring (205) is fixedly arranged on the side surface of the rotating disc (200).
7. The front chuck according to claim 1, wherein the direction adjusting structure comprises a motor mounting frame (400), the motor mounting frame (400) is fixedly mounted on the fixed base (100), a steering motor (401) is fixedly mounted on the motor mounting frame (400), a steering driving gear (402) is fixedly mounted at the output end of the steering motor (401), a steering driven gear (403) is fixedly mounted on the side surface of the rotating sleeve (101), and the steering driven gear (403) is meshed with the steering driving gear (402).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202520204430.9U CN223789572U (en) | 2025-02-10 | 2025-02-10 | A front chuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202520204430.9U CN223789572U (en) | 2025-02-10 | 2025-02-10 | A front chuck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN223789572U true CN223789572U (en) | 2026-01-13 |
Family
ID=98365467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202520204430.9U Active CN223789572U (en) | 2025-02-10 | 2025-02-10 | A front chuck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN223789572U (en) |
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2025
- 2025-02-10 CN CN202520204430.9U patent/CN223789572U/en active Active
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